Your workouts should be short and straight to the point. So many people pound away for hours a week on the treadmill. Lift weights until their arms pop and legs fall off. Look I am here to tell you that most of it is waisting time. Your workouts should be short and straight to the point. Work on getting your heart rate up at 70-80% of maximum output and keep it there from 15 seconds to a minute then bring it back down for 1-2 minutes, repeat for 20 minutes and your done. All of the extra stuff is a waist of time. Get in get out and be done!